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Proceedings Paper

On short-term memory of prefrontal cortex using near-infrared spectroscopy
Author(s): Chengjun Li; Zhuo Gan; Hui Gong; Qingming Luo; Shaoqun Zeng
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Paper Abstract

For studying prefrontal cortical function in short-term memory two tasks were designed. In task one, a plus expression appears on screen for 300 milliseconds every other 2 seconds and the subject is required to give it’s answer but not to remember it. In task two, an Arabic numeral presents on screen as the same frequency as in task one. While a number is present, the subject need adding it to the sum he got last time. As subjects, 26 children participated in the work. Blood volume changes(BVCs) of right prefrontal cortex(PC) under two cognitive tasks were examined using functional near infrared imaging(fNIRI), a noninvasive technique for localizing regional BVCs which correlate with neural activities. The BVCs caused by short-term memory for numbers were retrieved from BVCs by task one and task two. Results revealed that short-term memory is related to PC and the near-infrared spectroscopy(NIRS) can be used to study prefrontal cortical function in short-term memory.

Paper Details

Date Published: 8 December 2003
PDF: 5 pages
Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); doi: 10.1117/12.546564
Show Author Affiliations
Chengjun Li, Huazhong Univ. of Science and Technology (China)
Zhuo Gan, Huazhong Univ. of Science and Technology (China)
Hui Gong, Huazhong Univ. of Science and Technology (China)
Qingming Luo, Huazhong Univ. of Science and Technology (China)
Shaoqun Zeng, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5254:
Third International Conference on Photonics and Imaging in Biology and Medicine
Qingming Luo; Valery V. Tuchin; Min Gu; Lihong V. Wang, Editor(s)

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